socket.io |烧瓶-不允许使用405方法-Heroku

时间:2020-02-11 22:52:36

标签: python sockets heroku flask socket.io

在Heroku上使用/部署基本聊天应用程序时,不允许使用405方法。 我目前正在测试WebSockets。

问题:

  • 发送消息时,出现了405方法不允许页面
  • 加载主页时,我得到:不允许从控制台(客户端)请求资源
  • 加载主页时,无法从我的网址加载XMLHttpRequest

有代码库:

客户端

<!DOCTYPE html>
  <html lang="en">
  <head>
    <title>Flask_Chat_App</title>
  </head>
  <body>

    <h3 style='color: #ccc;font-size: 30px;'>No message yet..</h3>
    <div class="message_holder"></div>

    <form action="" method="POST">
      <input type="text" class="username" placeholder="User Name"/>
      <input type="text" class="message" placeholder="Messages"/>
      <input type="submit"/>
    </form>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/1.7.3/socket.io.min.js"></script>
    <script type="text/javascript">
      var socket = io.connect('http://' + document.domain + ':' + location.port, { transport : ['websocket'] });
      console.log('http://' + document.domain + ':' + location.port);
      console.log("=>=>=> socket");
      console.log(socket);
      socket.on( 'connect', function() {
        socket.emit( 'my event', {
          data: 'User Connected'
        } )
        var form = $( 'form' ).on( 'submit', function( e ) {
          e.preventDefault()
          let user_name = $( 'input.username' ).val()
          let user_input = $( 'input.message' ).val()
          socket.emit( 'my event', {
            user_name : user_name,
            message : user_input
          } )
          $( 'input.message' ).val( '' ).focus()
        } )
      } )
      socket.on( 'my response', function( msg ) {
        console.log( msg )
        if( typeof msg.user_name !== 'undefined' ) {
          $( 'h3' ).remove()
          $( 'div.message_holder' ).append( '<div><b style="color: #000">'+msg.user_name+'</b> '+msg.message+'</div>' )
        }
      })
    </script>

  </body>
  </html>

有python后端(main.py):

from flask import Flask, render_template
from flask_socketio import SocketIO

app = Flask(__name__)
app.config['SECRET_KEY'] = 'vnkdjnfjknfl1232#'
socketio = SocketIO(app)

@app.route('/')
def sessions():
    return render_template('session.html')

def messageReceived(methods=['GET', 'POST']):
    print('message was received!!!')

@socketio.on('my event')
def handle_my_custom_event(json, methods=['GET', 'POST']):
    print('received my event: ' + str(json))
    socketio.emit('my response', json, callback=messageReceived)

if __name__ == '__main__':
    socketio.run(app, debug=True)

有用于Heroku的Procfile:

web: gunicorn -k geventwebsocket.gunicorn.workers.GeventWebSocketWorker -w 1 main:app

我正在关注以下中等职位: link

但是没有关于在生产中使用套接字的解释。

0 个答案:

没有答案